MBSS Site Summary for: ZEKI-012-S-2001

Site Photos

Field photo showing stream conditions at site ZEKI-012-S-2001-84 (Opens in a new window) Field photo showing stream conditions at site ZEKI-012-S-2001-85 (Opens in a new window) Field photo showing stream conditions at site ZEKI-012-S-2001-86 (Opens in a new window)

Located on ZEKIAH SWAMP RUN in the Zekiah Swamp watershed, 8-digit code: 02140108.
This stream was visited in the spring on 3/12/2001 and again in the summer on 6/21/2001.

Index of Biotic Integrity (IBI) Results:

An Index of Biotic Integrity (IBI) is a scientific tool used to identify and classify stream health. An IBI associates anthropogenic influences on a stream or with biological condition in the stream, and is formulated using data developed from biosurveys.
Details on the development and application of MBSS IBIs are in this document.
Fish IBI Good - 4.3 / 5.0
Benthic IBI Good - 4.7 / 5.0

Land Use

Land use can provide important information for determining stream health.
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Catchment area 318 acres A stream flowing through a densely forested area. An example of a forested stream.
Urban Land Use 0 %
Agricultural Land Use 17 %
Forested Land Use 81 %


Stream showing woody debris, logs, and rocky substrate.
An example of woody debris in a stream.

Physical Stream Habitat
Instream Habitat 17/20 (Optimal)
Epifaunal Substrate 17/20 (Optimal)
Velocity/Depth Diversity 10/20 (Marginal)
Pool Quality
Pool Extent = 22 meters 		10/20 (Marginal)
Riffle Quality
Riffle Extent = 57 meters 		14/20 (Suboptimal)
Shading 94 %
Embeddedness 16 %


Stream Water Quality:
Water temperature 19.9 ° C
Dissolved oxygen (DO) 8.2 mg/L
pH (lab) 6.66
Conductivity 50 µmho/cm
Alkalinity
(acid neutralizing capacity) 		128.1 µeq/L
Dissolved organic carbon (DOC) 1.7 mg/L

Biological Stream Condition:

Surveys of the organisms living within a stream can give indications of stream health. Species richness, or the number of different species present, as well as indicator species (species whose presence, absence or abundance can serve as a measure of environmental conditions) are informative for stream health. 		Close-up of a mayfly indicator species.

Fish Survey Results:
The following 5 fish species were collected.
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Common name Count
Eastern Mudminnow 49
Least Brook Lamprey 45
Blacknose Dace 21
Pirate Perch 7
American Eel 2
Biologists sampling fish communities.
Electrofishing to sample fish communities.

Amphibians and Reptiles:
Northern Green Frog
Northern Two-Lined Salamander
Pickerel Frog
Wood Frog

Crayfish:
No crayfish noted.

Exotic Plants:
Japanese Honeysuckle
Multiflora Rose
 

Benthic Macroinvertebrates:
Sensitive taxa: Green, Tolerant: Red, Intermediate: Gold.
Genus/Family Common Name Count
Prosimulium Black Fly 56
Ephemerella Sulphur Mayfly 18
Acerpenna Tiny Blue-Winged Olive Mayflies 9
Cricotopus/Orthocladius Midge 9
Stegopterna Black Fly 7
Parametriocnemus Non-Biting Midges 5
Optioservus Riffle Beetle 3
Oulimnius Riffle Beetle 3
Chloroperlidae Green Stonefly 3
Diplectrona Net-Spinning Caddisfly 2
Hydropsyche Net-Spinning Caddisfly 2
Micropsectra Non-Biting Midges 1
Nanocladius Non-Biting Midges 1
Paratanytarsus Non-Biting Midges 1
Limnephilidae Northern Casemaker Caddisfly 1
Leptophlebiidae Pronggilled Mayfly 1
Neophylax Caddisfly 1
Sphaerium Fingernail Clam 1
Heptageniidae Flathead Mayfly 1
Orthocladiinae Midge 1
Cheumatopsyche Net-Spinning Caddisfly 1
Dixa 1
Probezzia Biting Midges 1
Amphinemura Spring Stonefly 1
Hemerodromia Tiny Fly 1
Kick net sampling for macroinvertebrates.
Sampling with a kick net.

Information disclaimer: The information and data on this page is for guidance and general planning purposes only. It should not be used to make decisions on specific matters.